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Broadband,Inc.
〒121-0832
東京都足立区
古千谷本町4-7-9
お問い合わせ
TEL:03-5838-0082
ask@bblaser.com
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SIOM |
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上海の国立研究所の製品です。3at%Nd:YAGが有名
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Neodymium Doped Yttrium
Orthvanadate Nd:YVO4 Crystal |
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Nd:YVO4 is one of
the most efficient laser host crystal currently existing for diode
laser-pumped solid-state lasers. Its large stimulated emission
cross-section at lasing wavelength, high laser induced damage
threshold as well as good physical, optical and mechanical properties
make Nd:YVO4 an excellent crystal for the high power,
stable and cost-effective diode laser-pumped solid-state lasers.
Recent developments have shown that Nd:YVO4 micro-lasers
can produce powerful and stable IR and green or red lasers with the
design of Nd:YVO4 + KTP.
We have
developed a new method to grow high optical quality and large size
Nd:YVO4 crystals. As large as f 30´ 50 mm3
Nd:YVO4 bulk crystal with very low intrinsic optical loss
are steadily obtained. Now, we can produce and provides high quality
Nd:YVO4 crystal at very competitive prices. |
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Basic Properties
(typically for 1.1atm%, a-cut Nd:doped YVO4
crystals) |
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Atomic Density |
~1.37´ 1020atoms/cm2 |
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Crystal Structure |
Zircon Tetragonal, space group D4h,
a=b=7.12, c=6.29 |
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Density |
4.22g/cm2 |
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Mohs Hardness |
Glass-like, ~5 |
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Thermal Expansion Coefficient |
a a=4.43´
10-6/K, a c=11.37´ 10-6/K |
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Thermal Conductivity Coefficient |
//C: 0.0523W× cm/K; ^
C: 0.0510W× cm/K |
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Optical Properties |
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Lasing Wavelength |
1.064μm, 1.342μm |
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Crystal class |
Positive uniaxial, na=nb, ne=nc,
no=1.9573, ne=2.1652, @
1064nm
no=1.9721, ne=2.1858, @ 808nm
no=2.0210, ne=2.2560, @ 532nm |
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Sellmeier Equation (for pure YVO4
crystals) |
no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2
ne2=4.59905+0.110534/(λ2-0.04813)-0.0122676λ2 |
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Thermal Optical Coefficient |
dna/dT=8.5´ 10-6/K, dnc/dT=3.0´
10-6/K |
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Fluorescent Lifetime |
90μms (about 50μs for 2atm% Nd doped) @ 0.81μm |
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Absorption Coefficient |
31.4cm-1 @ 0.81μm |
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Absorption Length |
0.32mm @ 0.81μm |
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Intrinsic Loss |
0.02cm-1 @ 1.06μm |
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Gain Bandwidth |
0.96nm (257 GHz) @ 1.06μm |
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Polarized Laser Emission |
π polarization;
parallel to optic axis (c-axis) |
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Diode Pumped optical to optical Efficiency |
>60% |
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Cr:Mg2SiO4 |
Sapphire |
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Cr:4+YAG |
YAG |
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Super
Nd:YAG |
Yb:YAG |
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Nd:YVO4 |
Ti:Sapphire Tunable Laser Crystals |
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